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Diffstat (limited to 'svgio/source/svgreader/svgimagenode.cxx')
-rw-r--r-- | svgio/source/svgreader/svgimagenode.cxx | 354 |
1 files changed, 354 insertions, 0 deletions
diff --git a/svgio/source/svgreader/svgimagenode.cxx b/svgio/source/svgreader/svgimagenode.cxx new file mode 100644 index 000000000000..b57bf800c29e --- /dev/null +++ b/svgio/source/svgreader/svgimagenode.cxx @@ -0,0 +1,354 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <svgio/svgreader/svgimagenode.hxx> +#include <svgio/svgreader/svgdocument.hxx> +#include <sax/tools/converter.hxx> +#include <tools/stream.hxx> +#include <vcl/bitmapex.hxx> +#include <svtools/filter.hxx> +#include <basegfx/matrix/b2dhommatrixtools.hxx> +#include <drawinglayer/primitive2d/bitmapprimitive2d.hxx> +#include <drawinglayer/primitive2d/groupprimitive2d.hxx> +#include <drawinglayer/primitive2d/transformprimitive2d.hxx> +#include <drawinglayer/primitive2d/maskprimitive2d.hxx> +#include <basegfx/polygon/b2dpolygontools.hxx> +#include <basegfx/polygon/b2dpolygon.hxx> +#include <rtl/uri.hxx> +#include <drawinglayer/geometry/viewinformation2d.hxx> + +////////////////////////////////////////////////////////////////////////////// + +namespace svgio +{ + namespace svgreader + { + SvgImageNode::SvgImageNode( + SvgDocument& rDocument, + SvgNode* pParent) + : SvgNode(SVGTokenRect, rDocument, pParent), + maSvgStyleAttributes(*this), + maSvgAspectRatio(), + mpaTransform(0), + maX(0), + maY(0), + maWidth(0), + maHeight(0), + maXLink(), + maUrl(), + maMimeType(), + maData() + { + } + + SvgImageNode::~SvgImageNode() + { + if(mpaTransform) delete mpaTransform; + } + + const SvgStyleAttributes* SvgImageNode::getSvgStyleAttributes() const + { + static rtl::OUString aClassStr(rtl::OUString::createFromAscii("image")); + maSvgStyleAttributes.checkForCssStyle(aClassStr); + + return &maSvgStyleAttributes; + } + + void SvgImageNode::parseAttribute(const rtl::OUString& rTokenName, SVGToken aSVGToken, const rtl::OUString& aContent) + { + // call parent + SvgNode::parseAttribute(rTokenName, aSVGToken, aContent); + + // read style attributes + maSvgStyleAttributes.parseStyleAttribute(rTokenName, aSVGToken, aContent); + + // parse own + switch(aSVGToken) + { + case SVGTokenStyle: + { + maSvgStyleAttributes.readStyle(aContent); + break; + } + case SVGTokenPreserveAspectRatio: + { + setSvgAspectRatio(readSvgAspectRatio(aContent)); + break; + } + case SVGTokenTransform: + { + const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this)); + + if(!aMatrix.isIdentity()) + { + setTransform(&aMatrix); + } + break; + } + case SVGTokenX: + { + SvgNumber aNum; + + if(readSingleNumber(aContent, aNum)) + { + setX(aNum); + } + break; + } + case SVGTokenY: + { + SvgNumber aNum; + + if(readSingleNumber(aContent, aNum)) + { + setY(aNum); + } + break; + } + case SVGTokenWidth: + { + SvgNumber aNum; + + if(readSingleNumber(aContent, aNum)) + { + if(aNum.isPositive()) + { + setWidth(aNum); + } + } + break; + } + case SVGTokenHeight: + { + SvgNumber aNum; + + if(readSingleNumber(aContent, aNum)) + { + if(aNum.isPositive()) + { + setHeight(aNum); + } + } + break; + } + case SVGTokenXlinkHref: + { + const sal_Int32 nLen(aContent.getLength()); + + if(nLen) + { + readImageLink(aContent, maXLink, maUrl, maMimeType, maData); + } + break; + } + default: + { + break; + } + } + } + + void extractFromGraphic( + const Graphic& rGraphic, + drawinglayer::primitive2d::Primitive2DSequence& rEmbedded, + basegfx::B2DRange& rViewBox, + BitmapEx& rBitmapEx) + { + if(GRAPHIC_BITMAP == rGraphic.GetType()) + { + if(rGraphic.getSvgData().get()) + { + // embedded Svg + rEmbedded = rGraphic.getSvgData()->getPrimitive2DSequence(); + + // fill aViewBox + rViewBox = rGraphic.getSvgData()->getRange(); + } + else + { + // get bitmap + rBitmapEx = rGraphic.GetBitmapEx(); + } + } + else + { + // evtl. convert to bitmap + rBitmapEx = rGraphic.GetBitmapEx(); + } + } + + void SvgImageNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DSequence& rTarget, bool /*bReferenced*/) const + { + // get size range and create path + const SvgStyleAttributes* pStyle = getSvgStyleAttributes(); + + if(pStyle && getWidth().isSet() && getHeight().isSet()) + { + const double fWidth(getWidth().solve(*this, xcoordinate)); + const double fHeight(getHeight().solve(*this, ycoordinate)); + + if(fWidth > 0.0 && fHeight > 0.0) + { + BitmapEx aBitmapEx; + drawinglayer::primitive2d::Primitive2DSequence aNewTarget; + + // prepare Target and ViewBox for evtl. AspectRatio mappings + const double fX(getX().isSet() ? getX().solve(*this, xcoordinate) : 0.0); + const double fY(getY().isSet() ? getY().solve(*this, ycoordinate) : 0.0); + const basegfx::B2DRange aTarget(fX, fY, fX + fWidth, fY + fHeight); + basegfx::B2DRange aViewBox(aTarget); + + if(maMimeType.getLength() && maData.getLength()) + { + // use embedded base64 encoded data + ::com::sun::star::uno::Sequence< sal_Int8 > aPass; + ::sax::Converter::decodeBase64(aPass, maData); + + if(aPass.hasElements()) + { + SvMemoryStream aStream(aPass.getArray(), aPass.getLength(), STREAM_READ); + Graphic aGraphic; + + if(GRFILTER_OK == GraphicFilter::GetGraphicFilter().ImportGraphic( + aGraphic, + String(), + aStream)) + { + extractFromGraphic(aGraphic, aNewTarget, aViewBox, aBitmapEx); + } + } + } + else if(maUrl.getLength()) + { + const rtl::OUString& rPath = getDocument().getAbsolutePath(); + const rtl::OUString aAbsUrl(rtl::Uri::convertRelToAbs(rPath, maUrl)); + + if(aAbsUrl.getLength()) + { + SvFileStream aStream(aAbsUrl, STREAM_STD_READ); + Graphic aGraphic; + + if(GRFILTER_OK == GraphicFilter::GetGraphicFilter().ImportGraphic( + aGraphic, + aAbsUrl, + aStream)) + { + extractFromGraphic(aGraphic, aNewTarget, aViewBox, aBitmapEx); + } + } + } + else if(maXLink.getLength()) + { + const SvgNode* mpXLink = getDocument().findSvgNodeById(maXLink); + + if(mpXLink) + { + mpXLink->decomposeSvgNode(aNewTarget, true); + + if(aNewTarget.hasElements()) + { + aViewBox = drawinglayer::primitive2d::getB2DRangeFromPrimitive2DSequence( + aNewTarget, + drawinglayer::geometry::ViewInformation2D()); + } + } + } + + if(!aBitmapEx.IsEmpty()) + { + // create content from created bitmap + aNewTarget.realloc(1); + aNewTarget[0] = new drawinglayer::primitive2d::BitmapPrimitive2D( + aBitmapEx, + basegfx::B2DHomMatrix()); + + // fill aViewBox. No size set yet, use unit size + aViewBox = basegfx::B2DRange(0.0, 0.0, 1.0, 1.0); + } + + if(aNewTarget.hasElements()) + { + if(aTarget.equal(aViewBox)) + { + // just add to rTarget + drawinglayer::primitive2d::appendPrimitive2DSequenceToPrimitive2DSequence(rTarget, aNewTarget); + } + else + { + // create mapping + const SvgAspectRatio& rRatio = getSvgAspectRatio(); + + if(rRatio.isSet()) + { + // let mapping be created from SvgAspectRatio + const basegfx::B2DHomMatrix aEmbeddingTransform(rRatio.createMapping(aTarget, aViewBox)); + + if(!aEmbeddingTransform.isIdentity()) + { + const drawinglayer::primitive2d::Primitive2DReference xRef( + new drawinglayer::primitive2d::TransformPrimitive2D( + aEmbeddingTransform, + aNewTarget)); + + aNewTarget = drawinglayer::primitive2d::Primitive2DSequence(&xRef, 1); + } + + if(!rRatio.isMeetOrSlice()) + { + // need to embed in MaskPrimitive2D to ensure clipping + const drawinglayer::primitive2d::Primitive2DReference xMask( + new drawinglayer::primitive2d::MaskPrimitive2D( + basegfx::B2DPolyPolygon( + basegfx::tools::createPolygonFromRect(aTarget)), + aNewTarget)); + + aNewTarget = drawinglayer::primitive2d::Primitive2DSequence(&xMask, 1); + } + } + else + { + // choose default mapping + const basegfx::B2DHomMatrix aEmbeddingTransform(rRatio.createLinearMapping(aTarget, aViewBox)); + + if(!aEmbeddingTransform.isIdentity()) + { + const drawinglayer::primitive2d::Primitive2DReference xRef( + new drawinglayer::primitive2d::TransformPrimitive2D( + aEmbeddingTransform, + aNewTarget)); + + aNewTarget = drawinglayer::primitive2d::Primitive2DSequence(&xRef, 1); + } + } + + // embed and add to rTarget, take local extra-transform into account + pStyle->add_postProcess(rTarget, aNewTarget, getTransform()); + } + } + } + } + } + + } // end of namespace svgreader +} // end of namespace svgio + +////////////////////////////////////////////////////////////////////////////// +// eof + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |